Download Vuolas Electronics Oy Ltd. User manual Rev. 1.0

User manual
Lift Audio 2
Advanced Voice Announcer Unit
Part No.
Description
Hardware
Software
Documentation
Lift Audio 2
Advanced voice announcer unit
Rev. 1
1.0
User manual Rev. 1.0
Vuolas Electronics Oy Ltd.
Kunnansarka 2
FIN-37150 Nokia, Finland
Tel. +358 (0)3 342 6900
Fax +358 (0)3 342 5800
e-mail: [email protected]
Vuolas Electronics Oy Ltd.
[email protected]
Rev. 1.1
November 2006
Page 1 of 7
User manual
Lift Audio 2
Advanced Voice Announcer Unit
Table of contents
Introduction............................................................................................................................... 3
Features ..................................................................................................................................... 3
Functional description............................................................................................................... 4
Electrical connections ............................................................................................................... 4
Technical information ............................................................................................................... 5
Electrical adjustment................................................................................................................. 5
Playing floor announcements.................................................................................................... 6
Playing special indications........................................................................................................ 6
Playing the music...................................................................................................................... 6
Changing floor announcements ................................................................................................ 6
Device configuration................................................................................................................. 7
Mechanical assembly ................................................................................................................ 8
Size and environment................................................................................................................ 8
Disclaimer & Copyright............................................................................................................ 8
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Rev. 1.1
November 2006
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User manual
Lift Audio 2
Advanced Voice Announcer Unit
Introduction
Lift Audio 2 is fully independent voice playback unit. It is capable of announcing floor
markings and other possible special indications. There is also a possibility to play
background music. The unit can be connected either to a typical parallel control interface or
to a RS-485 based VEBUS interface. Advanced digital technology ensures high quality and
natural voice reproduction. On board potentiometer can be used for sound volume
adjustment. Default set of voice sample files includes 59 english samples spoken by female.
Due to a standard detechable memory type it is easy to change voice samples for example to
a different language or add new background music.
Features
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Primarily intended for lift applications
Applicable for assembly either to the car or to a level
Maximum number of floors is 32
Enables high quality voice announcements of floor markings and special indications
Voice announcement is played when gong or symbol inputs are triggered (or through
VEBUS control)
Standard flash memory type for voice sample files
o Lots of space
o Exchangeable
o User can easily change or modify the voice sample files with PC computer
(requires MMC memory card reader)
Includes sample files
o English, female
o Used for creating the needed voice announcements
o Numbers 0...9, letters A…Z, minus sign and three special indications
Built in high performance audio power amplifier for driving external loudspeaker
Adjustable loudspeaker volume
Capable of playing background music
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User manual
Lift Audio 2
Advanced Voice Announcer Unit
Functional description
Floor announcement is played when gong-up or gong-down signal is triggered. Device plays
file from the memory card corresponding to the current floor code of parallel input or serial
control packet. Special indications (symbol 1…4) will be played when the appropriate signal
(SYM1…4) is active. Announcements have two priorities. Higher priority includes floor and
symbol 1…3 announcements. Symbol 4 has a lower priority. Higher priority announcements
will be always played completely. Lower priority announcements can be interrupted if higher
priority announcement occurs. For example if symbol 4 is currently playing and floor
announcement occurs, then symbol 4 playback is immediately stopped and floor
announcement will be performed.
Electrical connections
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Power supply input (J1),
o Operating voltage range, 20…30 VDC (max. 5% ripple voltage)
o Current consumption, <100 mA @ 24 VDC (without loudspeaker)
VEBUS connector (J6),
o 2-pin serial communication interface
o RS-485 compatible bus connections, 38400 bps
o Protocol is developed and optimized for lift applications
Parallel control interface (J8),
o Internal pull-down or pull-up resistors depending on jumper settings (J9, J14)
• Jumpers are set to match control signal polarity
• Two jumpers to individually set polarity for parallel position status
inputs and for the other control signals
o Pull-down/-up resistance: 10 kΩ
o Input voltage range: 0…30 VDC
o Logical levels:
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User manual
Lift Audio 2
Advanced Voice Announcer Unit
• Logic 0: 0...1 VDC
• Logic 1: 10...30 VDC
o Maximum input current: ±3mA (depending on input polarity)
o Symbol control inputs
• 4 inputs for the symbol indications control
• 2 inputs for the gong control (GONG UP, GONG DOWN)
• 2 inputs for arrow direction control (ARR-UP, ARR-DOWN) not used
• Loudspeaker output (J10),
o Loudspeaker impedance: 8…16 Ω
o Adjustable volume with trimmer R59
o Recommended loudspeaker: 8Ω, at least 4” diameter, 10W power handling
• Optional stereo line output connector (J11) not installed,
o 3.5 mm stereo jack
o for connecting to external audio power amplifier
Technical information
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Audio codec,
o 16-bit DAC
o THD+N: < 0.2 %
o S/N: 81 dB
o Supports MP3 and WAV file formats (MP3 format recommended)
o Up to 320 kbps in MP3 format (160 kbps recommended)
o Supports MPEG-1 and MPEG–2 Layer III (CBR, VBR, ABR)
Audio power amplifier,
o Maximum output power: 8 W @ 8Ω, 10% THD, 25˚C
o Overload protection: current limit and thermal shutdown
o 1-channel (left)
Memory card,
o Multimedia card (MMC)
o 128 MB (default), or up to 1 GB
o Supports FAT12, FAT16 and FAT32 (FAT16 recommended)
o Only for drives with 512 bytes per sector
Electrical adjustment
Loudspeaker sound volume can be adjusted by trimming potentiometer R59 close to the text
"VOLUME" on printed circuit board. Screwing potentiometer clockwise increases the sound
volume. And counter-clockwise screwing decreases it. Default volume setting is made in
factory. Use small screwdriver when adjusting volume, because the volume potentiometer is
quite fragile.
Two jumpers should be set to match the input signal polarity. J9 is for the position status
inputs and J14 for the others. When changing jumper positions, first disconnect the device
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User manual
Lift Audio 2
Advanced Voice Announcer Unit
from power supply, then change the jumper positions and after that connect the device back
to power supply. This is because the device automatically adapts to different input polarities
by reading the jumper positions to memory when power is switched on.
Playing floor announcements
Device uses predefined filenames for announcements. Filename is
attached to the floor code. For example if current floor code is 4,
the device tries to find file “4.mp3” inside the memory card root
directory and play it.
Floor announcement is played when either GONG-UP or GONGDOWN input is triggered. For example when GONG-UP is
activated, device reads the floor code. If floor code is 15, “15.mp3”
is played.
Floor
code
0
1
2
…
31
File name for
announcement
“0.mp3”
“1.mp3”
“2.mp3”
…
“31.mp3”
If the file is missing, the voice announcement is not played. All the files used for announcing
should be in root directory. Directory “\original\” includes back up of all voice samples.
Playing special indications
Special indications such as symbol 1...4 are played when the corresponding control signal
goes to the active state. Special indication files are named “symbol1.mp3”, “symbol2.mp3”,
“symbol3.mp3” and “symbol4.mp3”.
Playing the music
All the background music files should be stored in memory card music directory (\music\). If
background music feature is enabled from the device configuration file (ie. setup.txt), device
automatically plays music when there are no announcements.
Background music settings are:
• Music off/on
• Music attenuation compared to announcement level
• Music silence time (ie. wait time for playing the next song after announcement)
• Bass boost off/on (+6 dB below 60 Hz) (* when enabled maximum MP3 bitrate is
160 kbps)
Changing floor announcements
To change or modify the files in memory card, you need a memory card reader, which
supports Multimedia card (MMC).
Attention! Before removing or placing the memory card, first disconnect the device from
power supply.
User can replace or rename files (0.mp3 .. 31.mp3) to make the correct floor announcement
configuration.
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User manual
Lift Audio 2
Advanced Voice Announcer Unit
Device configuration
The device is configurated using a file (ie. setup.txt) in memory card’s root directory. The
file is shown below:
Each parameter row starts with index number and “|”-character. Parameter value is between
reserved characters “|” and “:”.
Parameter
RS-485/PARELLEL
BIN/GRAY
CAR/LANDING
Value
0 = RS-485
1 = parallel
0 = binary
1 = gray
0 = car
1 = landing
00…31
GONG FLOOR
MUSIC OFF/ON
MUSIC ATTENUATION
MUSIC SILENCE TIME
BASS BOOST OFF/ON
Definition
Control interface selection.
Parallel interface input coding. If RS485 is used, this parameter has no
effect.
Installation; in the car or on level.
Installation level. Use always two
characters when writing the value.
If CAR-mode is used, this parameter
has no effect.
Background music.
0 = disabled
1 = enabled
0…9,
Background music attenuation level in
0 = 0dB, 9 = 27dB decibels is parameter value multiplied
by 3.
1…9,
Wait time for playing the next song
0 = 2s, 9 = 18s
after announcement. Time in seconds is
parameter value multiplied by 2.
0 = disabled
Bass boost control for announcement
1 = enabled
and background music.
Table 1. Parameter values in device configuration file.
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Rev. 1.1
November 2006
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User manual
Lift Audio 2
Advanced Voice Announcer Unit
Mechanical assembly
Device has 4 holes for mounting. Refer to separate mechanical drawings for accurate
positioning of fixing points. Please consider space needed for cables and connectors (plugged
connectors exceed the outline of the device).
Size and environment
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Physical dimensions: 149.5 mm x 94.6 mm x 13 mm (+additional space for
connectors)
Tolerances: ±0.2 mm
Weight: 70 g
Operation environment:
o Temperature: 0…70 °C
o Dry environment, RH: <85% (no condensation)
o Not to be used in wet, moist or dusty environment
Disclaimer & Copyright
Vuolas Electronics reserves the right to change the product, its functions and/or
specifications without notice.
Copyright
2005 Vuolas Electronics Oy Ltd. All rights reserved.
Vuolas Electronics Oy Ltd.
[email protected]
Rev. 1.1
November 2006
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